Sources : Haniger

Thomas of Cantimpré [circa 1200-1272 CE] (Liber de natura rerum, Fish 7.12): The haniger is a marine fish of a color almost similar to that of an amio, but the form is different. For it has a shape almost like that of an eel, but it is shorter. Instead of a mouth, it has a cartilaginous beak, long and deep red like a stork's, with long furrows of various colors on the sides. Its flesh affords the most delicious food to the rich. - [Badke translation/paraphrase]